Animal testing is crucial in the advancement of understanding diseases. “To increase the medical, scientific, biological, or psychological knowledge, some scientists perform experiments using animals other than humans as their subjects” (Animal Rights). It is important to understand diseases so that proper medical treatment can be discovered to stop harmful illnesses. “Research animals provide scientists with complex living systems consisting of tissues and organs” (Animal Research) that assist researchers in improving their knowledge of the development causes of sicknesses. Animals are helpful for testing because their build up is closely related to humans and experience many the similar infections. “Animals are biologically similar to human in many ways and are vulnerable to over 200 of the same health problems. This makes them an effective model of researchers study” (Animal Testing).
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